Improvement in bevebsibee knob-latches



JOHN E., PARKER-or MERIDEN, .o0Nlltao'rle'UT Letters Panam. 77,650,dafetzvMay 5, 1868.

'msovsusnr m REVERSIBLE KNOB-Lisons.'

tlgs tlgehulrtefetreh tu in' ttpsel''ettett @that mit 'mating pint t'fttt stmt.

To ALL WHoM 1T MAY 4CONCERN:l u

- Be it known that yI, JOHN E. PARKER,' of Meriden, in theconnty of NewHaven, and State of Connecticut, h ave invented a nfew Improvement inKnob-latches and I`do hereby declare the followi ng, when taken inconneoti'on'with the accompanying drawings, and theletters ofxreferencemarked thereon, tobe a full, clear, andA exact descriptionof the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a side. view of the latch-case, the plate emoved-to'show theinterior, and in,A I

Figure 2 a partial view/ of the same illustratingthe operatio`n. v

This invention relates to'anlimprov-ement in kuch-latches, the objectbeing to make the latel1-bolt reversi ble, 'so as to serve either foraright or .leftlhand door; and the invention consists in yhinigingv thelockcase to the face-plate, so 'that thesaid face-plate may'beturnedfrom the case sulciently'towithdraw it from the latchbolt, andwhen s turned away the latch-bolt may he set for either a right orleft-hand position,the face-plate l v'returned and secured to' the easeby'any convenient arrangement, soas to retain the latch-'bolt in thatposition,

In order to theclear understanding of my invention, I will fullydescribe the same as illustrated in the,

accompanying drawings. l

A is' the lock-case; B, .the look-bolt; C, the latch-bolt; D, the yoke;.and E, the follower, all constructed and arranged in theus'ual'manner,save that the `tail of the latch-bolt is attached to the yoke lso as tobe free in a bearing, a,to be revolved in the said bearing. v F,the'face-plate, is hinged to the case A ator near thepoint d, and at itsupper or opposite end 'is provided with a catch,f, and a spring-latch,b, arranged in o'r upon the ease, so that when the face-plate is pressed'up `tothe position iniig. 1' it will becaught and held bythe spring fupon the one, and the catch .upon the other, and when in the positioninfig. 1, the latch-bolt is held in position and operatdin the1 usualmanner of knob=latches. A

` If desired 'to reverse the latch-bolt, vthat is, to changejfrom-rightto left, 'or viceversa, relieve the face-plate` Ffrom thelatch-b'y'depressing the spring d; then thrnA the face-plate fromtheease, as iu ng. 2, which leaves the latch-bolt free, when it may be setin either desired position, `and. when so set'return the face-plate, asseen in iig, 1. v n v Having described my invention, what I claim as newand usefulgand desirelto secure by Letters Patent, is-

Hinging the falco-plate to the look-case, so as towbe turnedvtherefrom,substantially inthe manner and for the purpose herein set forthand`describe'd.

. JOHN E. PARKER.

Witnesses:

A.v J. TIBBITS, J, H. SHUMWAY;

